This section provides a list of the more frequently encountered malfunctions, their causes and corrective actions. The operator or
maintenance personnel can perform some corrective actions, and others may require the assistance of a qualified D
your dealer.
Problem
Air leaks .................................................................................................................................... 1
Air leaks in air tank or at air tank welds .................................................................................... 2
Air leaks between head and valve plate .................................................................................... 3
Air leaks from safety valve ......................................................................................................... 4
Compressor is not supplying enough air to operate accessories ............................................ 1, 5, 6, 7, 9, 10
Restricted air intake. .................................................................................................................. 9
Oil in discharge air ..................................................................................................................... 9, 19, 31
Knocking Noise ......................................................................................................................... 4, 10, 11, 12, 13, 14
Excessive belt wear ................................................................................................................... 10, 11, 14, 15
Squealing sound ........................................................................................................................ 10
Moisture in pump crankcase ..................................................................................................... 1, 3, 8, 17, 18, 19, 20, 21, 22
Excessive current draw ............................................................................................................. 14, 26, 27
Compressor won't start in cold temperatures .......................................................................... 17, 34, 35
Pressure reading on the regulated pressure gauge drops when an accessory is used ........... 23
Regulator knob has continuous air leak .................................................................................... 24
Regulator will not shut off air outlet .......................................................................................... 24
Air tank pressure will not build .................................................................................................. 25
Compressor stalls ...................................................................................................................... 28, 29, 30
Overheating ............................................................................................................................... 27, 32, 33
Troubleshooting Guide
25
WALT technician or
e
Code